such that pthread_cancel() works properly. See also Ulrich Drepper, Cancellation
and C++ Exceptions, 2010 (http://udrepper.livejournal.com/21541.html).
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12651
Note: since the big lock is held while the malloc() and free() intercepts are
running, and since mmap() is treated by Valgrind as a non-blocking system call,
this code change is not expected to result in a behavior change of drd.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12478
This command-line option has been used to track down the recently fixed race in
drd/drd_pthread_intercepts.c.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12354
Avoid that the futex wake call in DRD_(sema_up)() can get invoked after the semaphore has
already been destroyed. This is most likely the real fix for the bug described in the
commit message of r12332.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12346
* new files include/pub_tool_groupalloc.h and coregrind/m_groupalloc.c
implementing a group allocator (based on helgrind group alloc).
* include/Makefile.am coregrind/Makefile.am : added pub_tool_groupalloc.h
and m_groupalloc.c
* helgrind/libhb_core.c : use pub_tool_groupalloc.h/m_groupalloc.c
instead of the local implementation.
* include/pub_tool_oset.h coregrind/m_oset.c : new function
allowing to create an oset that will use a pool allocator.
new function allowing to clone an oset (so as to share the pool alloc)
* memcheck/tests/unit_oset.c drd/tests/unit_bitmap.c : modified
so that it compiles with the new m_oset.c
* memcheck/mc_main.c : use group alloc for MC_Chunk
memcheck/mc_include.h : declare the MC_Chunk group alloc
* memcheck/mc_main.c : use group alloc for the nodes of the secVBitTable OSet
* include/pub_tool_hashtable.h coregrind/m_hashtable.c : pass the free node
function in the VG_(HT_destruct).
(needed as the hashtable user can allocate a node with its own alloc,
the hash table destroy must be able to free the nodes with the user
own free).
* coregrind/m_gdbserver/m_gdbserver.c : pass free function to VG_(HT_destruct)
* memcheck/mc_replace_strmem.c memcheck/mc_machine.c
memcheck/mc_malloc_wrappers.c memcheck/mc_leakcheck.c
memcheck/mc_errors.c memcheck/mc_translate.c : new include needed
due to group alloc.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12341
Avoids that DRD sporadically reports mysterious false positive conflicting accesses on
amd64 like e.g. the following:
$ ./vg-in-place --fair-sched=yes --tool=drd --read-var-info=yes --check-stack-var=yes --show-confl-seg=no drd/tests/annotate_smart_pointer 50 50
==18170== drd, a thread error detector
==18170== Copyright (C) 2006-2011, and GNU GPL'd, by Bart Van Assche.
==18170== Using Valgrind-3.8.0.SVN and LibVEX; rerun with -h for copyright info
==18170== Command: ./annotate_smart_pointer 50 50
==18170==
==18170== Conflicting store by thread 1 at 0x7fefff8a0 size 8
==18170== at 0x400FCE: AnnotateCondVarSignal (unified_annotations.h:32)
==18170== Allocation context: unknown.
==18170==
==18170== Conflicting load by thread 1 at 0x7fefff8a0 size 8
==18170== at 0x400FDD: AnnotateCondVarSignal (unified_annotations.h:34)
==18170== by 0x401071: U_AnnotateHappensBefore (unified_annotations.h:46)
==18170== by 0x4018DD: smart_ptr<counter>::set(counter*, AtomicInt32*) (annotate_smart_pointer.cpp:239)
==18170== by 0x401778: smart_ptr<counter>::operator=(counter*) (annotate_smart_pointer.cpp:208)
==18170== by 0x401377: main (annotate_smart_pointer.cpp:326)
==18170== Allocation context: unknown.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12332
